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Image processing apparatus and user authentication method for image processing apparatus

a technology of image processing apparatus and user authentication, which is applied in the direction of unauthorized memory use protection, digital output to print units, instruments, etc., can solve problems such as execution of jobs, and achieve the effect of reducing as much as position and reducing as much

Inactive Publication Date: 2014-11-04
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about an image processing apparatus that can prevent unauthorized users from using it or its functions. This means that even if one user is not yet logged out from multiple types of user authentication, another user cannot use the apparatus. This reduces the risk of unauthorized access to the apparatus and its functions.

Problems solved by technology

However, for example, a user, who actually intends to log out from the device authentication, may mistakenly log out from the function authentication and leaves the apparatus without being aware of his / her mistake.
This situation may lead to execution of a job by using a false identity.

Method used

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  • Image processing apparatus and user authentication method for image processing apparatus
  • Image processing apparatus and user authentication method for image processing apparatus
  • Image processing apparatus and user authentication method for image processing apparatus

Examples

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Embodiment Construction

[0028]Various exemplary embodiments, features, and aspects of the invention will be described in detail below with reference to the drawings.

[0029]FIG. 1 illustrates an example of a system configuration including an image processing apparatus (MFP) according to a first exemplary embodiment.

[0030]A multi function peripheral (MFP) 200, which is an example of an image processing apparatus, is connected to a Lightweight Directory Access Protocol (LDAP) server 300 via a local area network (LAN) 100. The MFP 200 is a multi-function image processing apparatus provided with multiple functions such as the copy function, the print function, and the send function.

[0031]The MFP 200 realizes user authentication when a user uses the send function, which will be described below, by communicating with the LDAP server 300 under a predetermined protocol (LDAP). This protocol is a known technology, and therefore will be not described in detail herein. The LDAP server 300 is an example of an authentica...

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Abstract

An image processing apparatus includes a first authentication unit configured to authenticate a user, a second authentication unit configured to authenticate the user, an operation unit configured to receive an operation from the user, a logout unit configured to set the user in a logout state in which the user is unauthenticated, if a predetermined time has passed without the operation unit receiving any operation from the user while the user is authenticated by the first authentication unit or the second authentication unit, and a change unit configured to change the predetermined time to a second time shorter than a first time, if the user is unauthenticated by the second authentication unit while the user is authenticated by the first authentication unit and the second authentication unit.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an image processing apparatus requiring user authentication for use of the apparatus or a function thereof, and a user authentication method for the image processing apparatus.[0003]2. Description of the Related Art[0004]There is known an image processing apparatus allowing an authenticated user to use the apparatus, and application software for realizing user authentication in an image processing apparatus. Hereinafter, the term “device authentication” is used to refer to user authentication performed for allowing or limiting use of an apparatus[0005]Some of apparatuses employing the device authentication are configured to measure a time period that a user does not apply any operation while being logging in after user authentication, and automatically cause the user to logout if the user does not operate the apparatus for a predetermined time, for example, as discussed in Japanese Paten...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06F21/31G06F3/12G06F21/60G06F21/00G06F3/048G06F3/0488G06F21/32G06F21/34
CPCG06F21/608G06F21/31G06F3/1222G06F3/12
Inventor IKEDA, ATSUSHI
Owner CANON KK
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